I just recently did the efi swap and have had a few problems which I have tryign to get fixed. I have done alot of research on here and pirate and have read a few post where people haev had ssame problem as me.My check engine light is not coming on first off....which wire provides power to ECU?I have had it running by manualing grounding a injector wire so it seems ECU is not grounding them out enough to stay running...I have put my ECU,resistor in another 85 4runner and it ran fine. I have checked gounds and especially one on intake manifold.I am trying to get this figured out by July4th for a wheeling party so any help would be greatly appreciated.

Thanks
JOhn Wayne

 

I did this once and I'm looking at my diagrams again. It looks like it gets power from your main relay and circuit opening relay so if your relays are not hooked up right then the ecu won't power on.

 

i have the relays hooked up right but does anyone else have any idea what else it could be....would the ignitor and coil be bad not to tell the ecu to fire injectors